Combustion-engine-lubricating mechanism



G. F. ZUCKER COMBUSTION ENGINE LUBRICATING MECHANISM Filed Dec. 19, 1921 Jam (910337565 Zac/(r 3-H "3. kg? 6%5.

Patented July 24 1923 1 UNHED STATES PATENT FFICE.

COMBUSTION-ENGINE-LUBRICATING MECHANISM.

Application filed December 19, 1921. Serial No. 523,508.

T 0 all whom it may concern) a,

Be it known that I, Gorrmnn F. Zucnnn, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Combustion- Engine-Lubricating Mechanism, of which the following is a specification.

This invention is an improvement in the lubricating devices of engines, particularly combustion engines of the Ford type, in

which the splash system is used for convey- I ing oil from the bottom of the sump in the crank case to the various crank pins of the engine. In engines of this type it has long been the practice to convey the oil from the sump to the most remote part of the engine and let it flow back along a more or less flat surface past the various crank pins to be there contacted by them as the engine operates. Devices so constructed have the distinct disadvantage that there is no way of adjusting the amount of oil available at each crank pin in the crank shaft as conditions of operation vary.

The object of this invention is to provide an independent oil pot or dish immediately adjacent to each crank pin connection and to provide means by which each of such pots is maintained with a predetermined desired quantity of oil, regardless of all other conditions of operation of the engine, this with the result that each crank pin is insured its proper supply of oil under all conditions of operation. v

More in detail the invention consists in means for insuring a continuous supply of oil to and from each of these oil pots and for regulating the flow of such o-il. Another feature of the invention consists in the novel form of oil pipe connection to the bottom of the pump of the engine, whereby the oil may be conveyed into the bottom of the sump without the piping devices getting so close to the ground that they are in danger of injury as the engine travels over the road. The invention further consists in many features and details of construction which will be hereafter more fully set forth in the specification and claims.

Referring to the drawings, in which like numerals designate the same parts throughout the several views,

Figure 1 is a side view, with certain parts in section, of a conventional form of combustion engine of the type described,

equipped with mechanism illustrating this invention in its preferred form;

Figure 2 is a sectional detail view of the pipe connection at the bottom of the sump;

Figure 3 is a sectional detail view of one of the oil pots.

Figure 1 shows, in conventional form, the engine body 10 having within it a plurality of vertically reciprocatable cylinders 12 provided respectively with connecting rods 14, 15, 16 and 13 connected in the usual manner to crank pins on the crank shafts 18, carrying at one end the gearing 20 and at the other end the fly wheel 22 of conventional form.

Below the fly wheel 22 is the usual oil sump 9A containing a supply of oil 26, adapted to be carried by the fly wheel over the intake funnel 28 of a pipe 30 leading out to and delivering oil onto the gear 20, from which it flows onto the upper, normally hori- Zontal plate 32 below the crank mechanism. In the prior art construction, this plate is normally a flat plate leading back, as shown, to the sump 24, the oil being supposed to flow over this plate in sufiicient quantity so that as the lower end of each connecting rod reaches the lowest position, as shown in connection with connecting rods 15 and 16, the crank pin on crank shaft 18, through the given rod, engages the oil flowing over the flat plate 82 and carries it up to be splashed in the ordinary manner over all adjacent parts. The parts thus far described, when the plate 82 is flat, are conventional Ford engine construction and do not enter into this invention, except as combined with the devices described hereafter and asset forth in the claims.

In applying the mechanism of this invention to the engine described, the conventional flat plate of the prior art is removed and plate 32, with its attached mechanism, is detachably secured in place by conventional means, such as the screws 34. This plate 32 has formed in it a plurality of oil cups or pots 36, 37 and 38, each adapted to fill with oil flowing from the gear 20 to the sump 24;, and of such a size that they may be readily entered to a greater or less eX- tentby the lower ends of the respective connecting rods. Each of these oil pots terminates at its bottom in the downwardly eX- tending tubular pipe 38, provided at its bottom with a dirt withdrawal passage 40, closable by any suitable means, as for instance a screw 42. Each of these passages conduct oil flowing through it back to the sump 24. In similar manner, the discharge ports 44 on oil pets 36 and 37 are respectively connected with branch pipes 56 and 58 leading into this same pipe 54.

The left hand end of pipe 54 is connected by union 60 to the intake port 62 of the hollow washer like block 64 enclosing the hollow bolt 66 rigid with the nut 68 at its lower end, and leading up through the bell shaped bottom portion 24 of the sump to a point in proximity to the fly wheel 22. Oil coming down pipe '54 and entering port 62 of the washer like member 64 gets into this hollow bolt through a lateral port 7 O in its side, opening into the annular chamber 72 formed in the washer member 64.

The plate 32 is preferably, but not necessarily, provided on its surface with guiding rods 74 tending to direct oil flowing over the top of plate 32 into these oil pots 36, 37 and 38.

The upper end of each of the tubular passages 36 is provided on the side where discharge port 44 is located with the baffle plate 7 6 adapted to, as far as possible, pre vent dirt falling vertically from the engine into the adjacent oil pot from going into tooclose proximity to the valve mechanism 44-46. By the use of this baffle plate, the

most of such falling dirt moves directly to the bottom of the passage 38, where it can be Withdrawn through port 40 on removing screw 42 in the obvious manner.

In the operation of the device, the oil delivered through pipe 30 to the gear 20 flows to the left, as viewed in Figure 1, over the plate 32, and fills the oil pots 36, 37 and 38, the surplus oil, if any, flowing on over the plate 32 into the sump 24. On initially ad justing the engine, valves 44-46 are so regulated that this condition of operation willtake place under normal conditions. If conditions of operation, such as excessive speed, require changes in the regulation, they can be made by the operator applying suitable wrench devices to the nuts 42 and 50 and moving the respective valves 46 in or out, as required, until the oiling system works as desired.

The structure of Figure 2 is important in that it gives the pine 54 an operative connection with the sump-.24 in a very limited vertical space, much less than is possible with the devices of the prior art.

By the use of this device, each crank pin can be independently adjusted to receive its proper amount of oil and no more, thereby doing away with spark plug trouble which it is well understood arises from too much 'the amount of oil returning from each oil pot to said oil supply means.

2. In mechanism of the class described,

the combination of a crank shaft carrying a plurality of. crank pins to be lubricated, a plate below the crank shaft provided with a plurality of oil pots, one for each crank pin mechanism, separate pipe connections leadmg from the lower portions of said oil pots to an oil chamber, mechanism carrying oil from said oil chamber and delivering it onto said plate to maintain oil in said oil pets for the purposes set forth.

3. In mechanism of the class described, the combination of a crankshaft carrying a plurality of crank pins to be lubricated, a plate below the crank shaft provided with a plurality of oil pots, one for each crank pin mechanism, separate pipe connections leadmg from the lower portions of said oil pots to an oil chamber,n1echanism carrying oil from said oil chamber and delivering it onto said plate to maintain oil in said oil pots,

and means in connection with each oil pot' for independently regulating the amount of oil returning from each oil pot to said oil supply means, for the purposes set forth.

4. In mechanism of the class described, an open top oil pot terminating at its bottom in a downwardly directed oil passage having on its side an oil delivery control valve and a baffle plate extending from the side of the downwardly extending oil passage over the valve mechanism for the purposes set forth.

In witness whereof, I, have-hereunto subscribed my name.

GOTTLIEB F. ZUCKER. 

